They're one of the most active teams in the transfer window and have spent over £452 already so it's pretty clear that they're splashing money to improve the quality of the team. Of course this is done for the benefit of the fans too. Most of the support base will probably understand if there's an increase in the price of the ticket or other club merchandise.
It doesn't matter how active Chelsea are in the transfer market and how much money is spent because it is the result and the performance on the pitch that will be judged. Because if a budget of that size does not show significant results, Chelsea will automatically receive a lot of criticism, including a failed coach.
If you read the comment I am responding to then you would understand that the amount of money they spent on the transfer market matters. The club was criticized for not spending much to improve the team as pointed out by another member so what did they do? They splashed. It's an important component when rebuilding a team and before getting the results the fans wants.