Yeah you don't see this team get RPs from the scrap heap and turn them around, and aside from Romano, their internal development hasn't been great in that area as well. Just looking at the pen now, they spent $21m on Green, $16m on Garcia, traded Teo coming off a 3 WAR/130 wRC+ for Swanson, Tellez for Richards/Francis, Groshans for Pop (...and Bass), and Frasso for White (DFA'd twice). They've developed Romano (good), Pearson (probably sucks), and Mayza (good in 2021 and 2023). As mentioned, their minor league relievers all looked like they had promise prior to the season but now look a lot less desirable based on performance.
I think for the most part Atkins has the right idea with RPs, they are volatile year to year and you shouldn't have to commit big money/years or trade anything significant for them. He's deviated from that a bit recently (Swanson trade, Green signing), but the Jays pen was a weakness in 2021-22 so in the absence of development or finding some diamonds in the rough, they kinda had to invest in it.