That is essentially going out of your way. It's like forgetting why you were using THT and perfboard in the first place. Maybe not technically, because sure you could have a stock of common adapter blanks already on hand, allowing you to build right now, which was the point, but it's getting very close to blowing that point if you're using smt parts on adapter pcbs on tht perf boards.
I guess it's still practical while still developing on solderless protoboards.
I'm not sure what you're saying... there is a clear benefit to perfboard and protoboards: they let you prototype instantly, without waiting for PCBs to be manufactured. An earlier critique of that approach was that some parts are no longer available as through-hole. I'm pointing out that there is a simple workaround that still lets you prototype quickly. Generic breakout boards are around $1 a piece and you don't need them custom-tailored to a project.
I guess it's still practical while still developing on solderless protoboards.