Isa Nacewa echoed his head coach Leo Cullen's post-match assessment that Leinster saved their worst performance 'til last.
The Blues skipper suggested that the loss to Scarlets in the Guinness PRO12 semi-final last night was harder to take than the defeat to Connacht in last year's decider.
"There's nothing worse than losing in a semi-final...even worse than a final. Saving our worst performance of the season until the last game isn't going to make for a short or exciting summer."
The Blues put on an uncharacteristically bad display at the RDS to allow the visitors seal a place in this season's finale, down the road at the Aviva Stadium next Saturday.
It finished 27-15 with Steffan Evans, Aaron Shingler and Gareth Davies running in tries which were all converted by Rhys Patchell.
Garry Ringrose and Isa Nacewa, who had kicked a penalty at 7-0, teamed up for the only 7 points of the first half which put the home team in front for a whole one minute.
All of those scores happened within the first half-an-hour. Shades of Lyon just a few weeks ago.
"We talk about getting the basics right and not doing that is always frustrating," added a gloomy looking Nacewa in the RDS press centre.
"We talked about not giving them a fast start or, in reverse, us starting well. We did that and then similar to the Cardiff game, we leaked three quick turnover tries."
Evans was dismissed before the break for a tip tackle on Ringrose but the Blues could not make the numerical advantage count as Scarlets put on a heroic defensive display.
"All round, one to fifteen, composure in the second half wasn't good enough against a team like Scarlets, even with fourteen men.
"The old cliché, full credit to them, they dogged it out with fourteen guys, an in-form team coached by a very good coach."
All the Leinster captain could hope for after the match was that the rest of the squad could use the pain felt after both of this season's semi-final defeats in a positive way heading into the next campaign.
"It was a pretty lonely feeling, standing in the middle of the pitch in Lyon in a European semi-final. We sat out there in the middle of the field and we didn't want to have that feeling again.
"Let me tell you, it's ten times worse losing a semi-final in the RDS in front of our home crowd. So rightly so it's going to hurt. And so it should because if it doesn't hurt then we're never going to take learnings from it.
"But I know this group has taken massive strides this year and it will hurt all summer long. Some guys have got a bit more rugby to go, some don't, and hopefully that fuels the drive to not feel like this again."