Can somebody explain to me how did we come to the misconception that having access to FRP magically makes your blobs more punishable to artillery than not having access to FRPs?
If anything, FRPs give you access to an additional retreat point you can use (the other being your base).
If your base gets barraged you have nowhere to go. If your FRP gets barraged, np: just deactivate FRP and hit mass retreat to your base.
The 'f' in frp. There's been plenty of effort to eliminate the ability for players to blast people's hqs with indirect fire. Be it building mortar pits in base hqs to loiters and off map arti unable to target hq sectors.
When an frp exists, that retreat point is often in range of indirect fire and in sectors where off maps can directly target the frp.
Things like land mattresses, katyushas, and calliopes that throw multiple volleys are excellent for clearing fros. Stuka zu fuss and panzerwerfers are as well, but the single volley requires much better timing. A katyusha firing on a medic truck can usually wipe retreating units even if they immediately retreat to the hq due to the saturation effect.
Not sure why this concept is a sudden mystery.