Well, my take on DCS is there's a bewildering amount of buttons and control interfaces to deal with, so yeah I can see if you get a "system" that has like 50 buttons, it could be preferable for DCS.
Virbl is modular. It began a long time ago as a guy making titanium replacement gimbals and drop in hall sensor replacements for the TM Cougar HOTAS. That system shipped without grease and shitty gimbals that ate themselves, and this guys hardware made them invincible. With the hall sensor setup the HOTAS became pressure based like a legit gen 4 fighter stick.
Nowadays you can get 2 stick bases, the warbird base or the mongoose base and use any stick with them. The warbird base has a lot more throw. The mongoose is higher quality and you can adjust it while using it. So you can lock some things in place and there's no center return, it's a legit floppy stick. They have extensions so you can floor or seat mount it. There's 5 right handed and 2 left handed options for sticks, the cheapest one of them a stripped down warbird stick that's great for AH. It has followed sim racing where you get a wheel base and many wheel options so you can hot swap to whatever you're driving that session.
They only have 1 throttle option but it's a split throttle which can lock together so it's a really nice feature to have in any game. I continue to be a huge fan of CH pedals. It's what I always used... but Virpl pedals are better, and you can get a damper accessory that makes them feel really nice. The spring return on CH feels like shit after you use dampened pedals. I'm sure eventually that damper will be force feedback too.
Button boxes are one of the most underrated things to have. Virpl's are crazy overpriced though. iRacing ones are cheaper and have the same amount of buttons. You don't need shit on your stick, but it's nice to not have to use the keyboard for landing gear or engine starts, something that has no place on a limited button warbird joystick. More convenient and easier to mount than the traditional keyboard-under-monitor.