I always look to the analogy of learning to drive an automatic (striker fired) vs. a manual transmission (DA/SA).
If you need to learn to drive a car as quickly as possible to pass a driving test, than learning on an automatic transmission will be the most efficient option.
However, (and I say this as someone who learned to drive on a manual) if you invest the time, I think learning manual transmission makes you a more effective and attentive driver. At least you can always transition to an automatic transmission easily. The opposite is not true. I own a P10C and have no problems shooting it or my DA/SA pistols.
Case in point, l learned to shoot on Glocks and I shot them with basic proficiency. However, when it came time to purchase a pistol of my own I opted for a CZ 75 BD (not my last DA/SA CZ). The de-cocker was kind of important here since I could more easily practice those two trigger pulls.
I did this because I knew that basic proficiency was not enough and I wanted to get better. If you want to be able to quickly and accurately get off the first shot in DA drawn from a holster and transition the following shot to SA, it takes more training, dry fire, and live fire trigger time. The thing is, regardless of the pistol, you can never get enough of any of these and we all probably don't (I know I could do more).
Now I'm no pistol badass or expert marksman however; I've noticed over time, that I am a more proficient shooter than my friends and acquaintances who started pistol shooting at the same time as me. They all opted for striker-fired and they thought "That's pretty good. In fact, that's good enough." and thus went to the range less often. Over time that really begins to tell.
Lastly, I remember one of said acquaintances shooting my SP-01 Tactical at the range a few months ago. He loaded the mag, racked the slide, noticed at the cocked hammer, pointed to it, and asked "what about this?" of course I told him to just shoot it in single action since it was from the bench and not holstered.
I never want to be that guy. Similar to pointing at the clutch pedal on a manual car and asking "what's this thing do?"