That’s not a justification. Let’s not pretend they’re Crewe Alexandra or Newport County. At the end of the day Arsenal will likely pay enough in agent fees alone this summer to cover the combined annual salaries of all the admin staff and second line support staff, aka normal people, that they’ve made redundant.
It's not great PR at all, but perhaps they've just did a business review and realised that actually they are overstaffed for how they are running or look to run in the future. I seen a tweet regarding Non Playing staff numbers, Non-football related staff per club according to last accounts, now I'm not sure how accurate it is, and of course it depends on how accounts are reported but according to it Arsenal still employ way more non playing staff than the like of Spurs & Chelsea even though they've been taken over in revenue by them. Swiss Ramble done an analysis of Arsenal's accounts and they stand to lose over £120M in revenue if matches are played behind closed doors until the end of the calender year, that's massive.
No one wants to see job losses whatsoever, and if the players were promised that their would be no losses then they are quite right to be upset & questions asked. It's perhaps the way they have went about this that seems a bit more underhand & lacking a bit of empathy that's most worrying, that's where I worry about the leadership of the club going forward. Of course, in an ideal world your Billionaire owner would come in & offer to cover these jobs etc, but the reality is that he isn't actually as invested in terms of level of care that some other club owners have for their staff, which is more the norm on businesses in general unfortunately.
I think you need to separate it from the transfer business though. The bad PR is that this happens in a week where Willian is offered a big contract & Auba looks set to sign his. But the club will look to recoup coop this outlay by trading. They will actively look to get the likes of Sokratis, Kolasniac, Ozil, Guendouzi, Mustafi, Elneny, Mkhitaryan off the wage bill, and will be willing to listen to offers for the likes of Maitland-Niles, Torriera, Holding & Lacazette. So it's not like they are just going on a big spending spree without any consequences. I wouldn't be surprised if the end up with a small net spend or even a profit on transfer fees & wages by the time the window shuts.