Yea blocked soontir is easy to kill, if you have more than one ship left. And being a rebel player, I can expect to have exactly one ship left turn five and on - the ship I put R2-D2 on, haha.
Decimator / Fel can kill the support before I ever get a chance to block Fel, that's why I think anti-pursuits are so critical. Because one on one Dash always loses to Fel otherwise.