Ricciardo's race last just eight laps until he pulled over at the side of Turn 11 with a terminal vehicle problem.
With the Australian set to leave Red Bull at the end of the season to join Renault, Horner says the number of reliability issues that have been related to the power unit will be of particular frustration for Ricciardo.
Horner couldn't stop himself from sinking the boot into the Aussie, with a sly dig at his driver's move to the factory Renault team next year, who are presently supplying powertrains to Red Bull.
However, Ricciardo's current teammate Max Verstappen has revealed that following his angry reactions to this weekend's mechanical failure, some "jokes" have been made about him within the Red Bull garage.
Regarding this issue, Red Bull team boss Chris Horner had this to say: "It's ironic that it always happens on his auto". "He's just taken his frustration out on his room by putting his fist through the wall, which you can totally relate to". "We've got another energy store within the allocation without having to take a penalty".
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"He doesn't blame the team in any way".
"I think they both would have been on the podium, for sure".
"At that altitude the engines can't breathe [as easily] and it brings it all closer together, and that gives us a chance".
Sunday was just the latest in a long line of technical problems that have blighted Ricciardo's season since he won at Monaco in May.
The 21-year-old was forced to retire in Bahrain and Azerbaijan in the early weeks but has since improved and built on his only win of the year so far in Austria in July with a third-place finish in Belgium before he was second in Singapore.
"Max never surprises us with how good he is", Marko said after the Dutchman finished second in Austin.