Definitely think we've got a bit better at playing the loan game in recent years. If you compiled a top ten of loanees, most would be from the past decade. TBH, most would be the past 5/6 years but the trio of loanees in the cup winning side skews the data slightly.
Off the top of my head, and in no order, Paul McGowan, Isma, Newton, Dummett, Sean McLoughlin, Famewo, Cammy Smith, Liam Smith, Connor Ronan, Harry Davis... have all been, I'd say, very successful for us. I'm not counting Lewis Morgan, and there's probably others I've forgotten.
However, the current model - maybe using a loan player or two to add a bit of quality to an otherwise settled squad - is a WAY better strategy than filling the team with loans in a 'spray and pray ' approach.