There was an interesting comment in the previous post about this. Whilst conspiracy nonsense is often quite common here on Lemmy I do feel in this case it's pretty accurate of what's going on.

Lammy and his French counterpart were recently in Israel having high level meetings with the Israeli government. No doubt the topic of on going support from the UK & France came up and no doubt Lammy would have mentioned that it doesn't look good politically in the UK to still have these licenses for arms to kill Palestinians. The US is being particularly quiet on this one given the election but a Trump team member recently said something to the effect of "The UK can get fucked if it stops selling arms to Israel... I tell you hwat".

So, to me, this really does feel like the UK trying to balance politics at home and abroad. Even the way Lammy sheepishly apologised for suspending a tiny fraction of arms sales to Israel. Just enough to placate the voters at home whilst trying not to damage inward investment from countries that fully support Israel's campaign (i.e. the US and Israel itself).