I don't think the plan is an occasionally rocket launch long term. I think the plan is to launch rockets as fast as humanly possible.
[1]https://www.faa.gov/sites/faa.gov/files/2022-06/PEA_for_Spac...
Also, they're expanding their factory in Florida, so they could be built on site.
They have mentioned recently that they do still plan to go to barge launching when they get to 1000 flights per year.
The idea is not crazy, at least not any more than anything else related to Starship. But it is not needed right now.