Can we imagine a future where we're using both a hammer and a screwdriver, depending on situation, without hammer-only and screwdriver-only people yelling at each other?
So basically, this hypothetical forum is not on the internet.
Log or printf debugging is like a shovel, RR is like a steam shovel, and Pernosco is almost like the entire railroad logistics system set up by John Stevens for digging out the Panama canal.
He completely rebuilt the rail system so that trains were moving past the shovels in the cuts continuously. Each shovel would simply unload dirt on whatever train car was closest. The trains in the cut moved slowly and never stopped, so there was always a car available. At the fill sites where the dirt was unloaded, he built what was effectively a huge plow system that would scrape the dirt off of the flat–bed cars all in one go (The French just had hundreds of men climb into the cars with shovels to dig the dirt out of the cars, effectively handling every shovel–full twice). The result was like a continuous conveyor belt over 50 miles long. He also built towns, stores, machine shops, water treatment and sewage systems for the towns at either end of the canal, and allowed Gorgas to virtually eliminate mosquitoes from the canal zone.
Pernosco is more like the entire logistics system than the steam shovel, though there are still a few rough edges and some features that I wish it had.
Sometimes you don't need the entire railroad logistics system if you're only removing a single shrub.
It's perfectly fine for you to want a step-based debugger. In fact, if there's anything not fine is that you should probably want more than that, but don't even get to see better tools around. It's great that somebody took the time to develop better tools and is trying to sell it... But, let's stop attacking print, because it's a perfectly fine tool.