Was Ander Herrera lucky to avoid a red card for this horror tackle on Joe Allen?

Ander Herrera doesn't strike you as a midfield enforcer.

Getting stuck in à la Roy Keane isn't the strongest element of the Spaniard's game but he came up with a tackle on Sunday afternoon that bore a striking resemblance to the most infamous challenge of Keano's career. https://www.youtube.com/watch?v=6nGkafx3-Ks Herrera only saw yellow for this studs-up tackle on Stoke's Joe Allen, who went on to score the equaliser for the Potters. Allen was lucky to avoid serious injury and could well have suffered a broken leg had his foot been planted in the turf. But plenty of spectators were convinced that Herrera got off easy with a booking for this. https://twitter.com/davidhalelfc/status/782555203123941376?ref_src=twsrc%5Etfw https://twitter.com/cosnakickbo/status/782554048457216005?ref_src=twsrc%5Etfw https://twitter.com/JayLutts/status/782554865272782848?ref_src=twsrc%5Etfw https://twitter.com/spally76/status/782553929561300993?ref_src=twsrc%5Etfw https://twitter.com/sflivingston/status/782554047203213312?ref_src=twsrc%5Etfw https://twitter.com/AndersArsenal/status/782553888155176960?ref_src=twsrc%5Etfw https://twitter.com/TomHolmes19/status/782553832010186752?ref_src=twsrc%5Etfw https://twitter.com/marzu_awal/status/782553874297155584?ref_src=twsrc%5Etfw https://twitter.com/DondeonBeke/status/782553420381192192?ref_src=twsrc%5Etfw https://twitter.com/IwobiFlick/status/782553415230562304?ref_src=twsrc%5Etfw https://twitter.com/Iscflex/status/782553714833907712?ref_src=twsrc%5Etfw https://twitter.com/Selway826/status/782566516013293568