According to Taginfo, foot=designated is the fifth most common tag on highway=cycleway globally. This seems to make it a valid and meaningful combination, no matter what the Wiki says about it. You’re better off proposing a change to the Wiki documentation than doing any bulk edits.
The dual use cycleways/footways are one of the main reasons the country specific preset items exists both in iD and Vespucci (and hopefully soon in JOSM), as people have constantly been unhappy over the years about which of the three semantically identical variants to use and there tend to be strong country preferences…
Has anyone tried to add the other “Cycle & Foot Path” preset (highway=path + foot=designated + bicycle=designated) for use in the “excluded” geographies?
I was hoping that this option of “country code” was available. It is logical that it would be. I was about to write you asking about this option when I saw @SimonPoole 's post above.