Didn't say not to, but you need to weigh the cost of the 5/24 slot with no SUB and the need to make 5 purchases every month to earn the rent credit.
5/24 slots are quite valuable.
I understand that for many people the slots are extremely valuable. However, between myself and P2, I worry about MSR a lot more than 5/24 slots. Because of my lack of high organic spend and very minimal MS a one-time pull for constant rent-earning points.
(After making this calculation around a year+ ago, I did come across a small way to MS and ended up having to micromanage my personal cards applications. But overall, no regrets.)