Exactly!
(The following MATCH RECAP is drawn from Sofascore & TransferMarkt MATCH PAGES as well as TEAM PAGES and from some pre-game free prediction sites which feature write-ups)
A subset of the smaller outfits from subordinate leagues tend to overperform when facing bigger clubs; Sofascore's xG re-scoring showed Albacete's play at 0.82 xGoals as opposed to Real Madrid's 2.04 xGoals.
Looking toward's the left side of the screen at "Attack Momentum", it becomes obvious why Real Madrid was able to possess the ball for 78% of the match and had 700 passes against Albacete's 200 passes.
Albacete concedes a lot of goals in LaLiga2 (aka, La Liga Segunda Division) which has a decent-scoring team sitting JUST ONE POINT above the -4-team relegation zone so when one sees the DEFENS[IVE] figures their performance across that subset of stats in LaLiga2 it is amazing how they hung around with a chance to win the game in the final seconds before time expired against Real Madrid.
Go back to the match of December 17 and one sees that Albacete was able to "hang around" and was able to go to overtime penalty shots & defeat La Liga's Celta Vigo with the penalty phase shootout 3 to 0 in favor of Albacete.
No one wants to get knocked out of the Copa Del Rey but Celta Vigo had just moved up to 8th in the standings with a chance to get a place next year in Europe (Celta Vigo is now sitting at 7th place) so obviously Celta Vigo rotated...
.. but in that match the balance of LaLiga 2 and the other European leagues with similar & lower transfermarkt payrolls got a good look at the Albacete goaltender who did PRETTY GOOD against one of the better-scoring teams in Europe.
Gunner4ever spoke of Albacete escaping bankruptcy many years ago and though they are in a much better financial state now; they are still a little bit "in the red" moneywise' their goaltender's great performance against rotated Real Madrid players with still-huge e-market dollar value will be raising eyebrows, as it were.
This may mean he is one of the figurative "poker chips' TO BRING IN SOME MUCH-NEEDED CASH in the next one or two transfer portals... IF THE GOALTENDER HAS one or two high-quality defenders in his next stop and maybe a slight change in philosophy on the midfield attacking schema in favor of helping out the defense, one may see him being a backup goaltender in a different, slightly better team in a slightly better league
Midfielder Javi Villar also played exceptionally well in the defensive scheme employed
Left-Back Defender is youngster Daniel Bernabeu who performed well, is under contract till 2028 & hopefully will get some more minutes with the senior squad as the game rankings showed (and the entire left side played well according to the Sofascore game ratings)