It's not bad, it's just not flexible.
And say if you have any leaks between the MAF and plenum, well then your load axis goes out the window.
Here's a real world scenario, I blew off an intercooler hose last track day, as the clamp decided to Bluetooth itself somewhere. Still continued to do 2 laps and drive it to the pub for a couple of beers then home.
Good luck doing that with a MAF setup