Now I'm even seeing some pop up ads from a company that claims you can get
your IFR ticket in 10 days!!

That's nothing new. To me it's no different from getting a multi rating
in 2-3 days. (I did) I also realized that while I had the rating I
wasn't an experienced twin pilot and needed a lot more flight time
before I was comfortable with two fans. For that matter a 10-day IFR
pilot probably shouldn't be attempting IMC conditions (certainly not
low IMC) without another pilot until the experience level comes up,
although there will be those that will do it solo. It may be easier in
a glass panel Cirrus than an old 172/Warrior but I think a conservative
approach pays off long term.