Yes they did. When they read, "So they fight in the cause of God. They kill and are killed", for some reason they think it means, "So they fight in the cause of God. They kill and are killed".
Go figure.
Salam
I am going to help you out. The word "min" means from and so its a subset.
إِنَّ اللَّهَ اشْتَرَىٰ مِنَ الْمُؤْمِنِينَ أَنْفُسَهُمْ وَأَمْوَالَهُمْ بِأَنَّ لَهُمُ الْجَنَّةَ ۚ يُقَاتِلُونَ فِي سَبِيلِ اللَّهِ فَيَقْتُلُونَ وَيُقْتَلُونَ ۖ وَعْدًا عَلَيْهِ حَقًّا فِي التَّوْرَاةِ وَالْإِنْجِيلِ وَالْقُرْآنِ ۚ وَمَنْ أَوْفَىٰ بِعَهْدِهِ مِنَ اللَّهِ ۚ فَاسْتَبْشِرُوا بِبَيْعِكُمُ الَّذِي بَايَعْتُمْ بِهِ ۚ وَذَٰلِكَ هُوَ الْفَوْزُ الْعَظِيمُ | Indeed Allah has bought
from the faithful their souls and their possessions for paradise to be theirs: they fight in the way of Allah, kill, and are killed. A promise binding upon Him in the Torah and the Evangel and the Quran. And who is truer to his promise than Allah? So rejoice in the bargain you have made with Him, and that is the great success. | At-Tawba : 111
The same Surah (11 verses later) says they should not all go to fight, but some should have other honorable roles:
وَمَا كَانَ الْمُؤْمِنُونَ لِيَنْفِرُوا كَافَّةً ۚ فَلَوْلَا نَفَرَ مِنْ كُلِّ فِرْقَةٍ مِنْهُمْ طَائِفَةٌ لِيَتَفَقَّهُوا فِي الدِّينِ وَلِيُنْذِرُوا قَوْمَهُمْ إِذَا رَجَعُوا إِلَيْهِمْ لَعَلَّهُمْ يَحْذَرُونَ | Yet it is not for the faithful to go forth en masse. But why should not there a group from each of their sections go forth to become learned in religion, and to warn their people when they return to them, so that they may beware? | At-Tawba : 122
The "from" is very important to understand its a subset:
وَلَنَبْلُوَنَّكُمْ بِشَيْءٍ مِنَ الْخَوْفِ وَالْجُوعِ وَنَقْصٍ مِنَ الْأَمْوَالِ وَالْأَنْفُسِ وَالثَّمَرَاتِ ۗ وَبَشِّرِ الصَّابِرِينَ | We will surely test you with a measure of fear and hunger and a loss of wealth, lives, and fruits; and give good news to the patient | Al-Baqara : 155
If the loss was followed "from" it would mean no wealth, no lives, no fruits, at all, but it says, there will be loss from these things, and so some might be hungry due shortage of food, some believers will lose lives, some will not be able to gain wealth or will lose it or be under strain regard it.
The other thing not all believers will lose one of these things, either "fear" or "hunger" or "loss from... (one of those three)", so all believers at minimum will be fearful of these things because of the trial of oppressors towards them or if not fearful, they faced one of these trials, in which they react with:
الَّذِينَ إِذَا أَصَابَتْهُمْ مُصِيبَةٌ قَالُوا إِنَّا لِلَّهِ وَإِنَّا إِلَيْهِ رَاجِعُونَ | —those who, when an affliction visits them, say, ‘Indeed we belong to Allah and to Him do we indeed return.’ | Al-Baqara : 156
Also, the end goal is the Mahdi establish justice, and we pray there be no more wars after his revolution. And so this is not a timeless verse that applies forever, but rather it means they when required will fight. The main issue is that Allah (swt) has bought their souls, so they are willing to sacrifice for greater good.
But this does not mean fight all the time, it means, when fighting is required, you will find from believers fighters as from believers are people who are completely generous souls willing to sacrifice themselves for greater good of humanity.