The club need to comply to the FFP cap regulations also called squad cost ratio this will be reduced by 10% every summer until it hit 70% by 2025. It also only allows a 60m deficit over a 3 year period. So depending on where Inter is in that process, this would in itself force Inter to cut down of said expenses (salary, agent fees, player expenses).
Also just generally making the financial situation more healthy might not be an entirely stupid thing to do. Planning budget after getting far in CL is l incredibly risky, even being completely dependent on being part of the tournament is really a high risk decision, as you will undoubtedly have years where that goal won’t happen and then what. It’s also why Inter need to strengthen its base income and for that we need that stadium, we need better sponsorship deals.
All that we know in about 3 months time, it will be easier to see then why the management did what it did.
Anyway we already improved on the sponsor part compared to last term, the payroll been reduced by about 20% so it’s step in the right direction, so hopefully the club aren’t far from complying to next year requirements.