Many of the teams I saw would not be challenged playing Dead Club Walking and its peers in pspl.
? Most of the team entered were from RVS and in the PSPL are Classic level teams with a couple mid/lower Super League teams. So not the top of the Super League at all (except one team not from RVS). Here's all the PSPL teams that entered, how they did in the Open Cup and how they did in the fall/spr PSPL. It doesn't look to me that RVS entered because of not finding high enough competition in the PSPL but for other reasons.
The bit in the parentheses is how the team did in the Open Cup with 1/2 meaning 1st out of 2 teams. The letter is the bracket. Not all teams played in both the fall and spr PSPL, so if fall or spr missing, it means they didn't play in the PSPL that season.
BU12/13 (2/4 B) RVS 99 Orange, in middle Classic fall & spr
(4/4 A) RVS 00 Orange, bottom of fall Super League, bottom of Spr Classic
GU12 (2/4 A) RVS 00 Orange, lower half of fall Super League, 2nd from bottom in spring
(4/4 A) RVS 00 White, bottom fall Classic, top of Classic 2 in spr
GU13 (4/4 A) RVS 99 White, bottom of spr Classic
GU14 (7/7 A) RVS 98 White, top of fall Copa, bottom spr Copa
(6/7 A) RVS 98 Orange, middle of spring Classic 2
(1/7 A) FC Spokane G98 Black - Dinaro (according to another poster; this team played under name Cobra Azzurri in the PSPL. won the fall 2011 Super League and 2nd in the spring 2012 Super League; won all their games and was not scored against in the Open Cup; in the Super League was 4-2-2 spr '12 and 11-0-1 in fall '11)
GU15 (2/4 A) RVS 97 Orange, middle of fall&spr Super League
GU16 (3/3 B) RVS 96 Orange, bottom of the HS winter Super League
(1/3 A) BIFC 96 Blue, 2nd in the HS winter Classic
GU17 (2/3 B) RVS 95 Orange, middle of HS winter Super League
FYI, for those not in PSPL. Super League is the top, Classic middle, Copa lowest. Sometimes Classic is divided into 1 and 2.