Even with the capex limits, the smaller teams should slowly catch up to the big teams infrastructure wise because the teams with better facilities have less room to improve when spending the same amount of money. Problem is that the smaller teams don’t have the overall budget to invest in facilities, etc.
The current capex limits are more harmful to teams like alpine, Aston, McLaren and Audi/Sauber who have the money needed to upgrade/build modern facilities but are hamstrung by the spending limits