Sweet potato "toast" is sliced sweet potato and is definitely permitted on Whole30. If you, personally, have a very strong association to conventional toast where you think that putting toppings on a slice of sweet potato is a gateway food for you, then sure, you should exclude it. Latkes are also permitted for the program as they are baked or pan fried vegetables. We understand that some people may find that they are better off leaving them off and that's fine but they are also not considered SWYPO.
I appreciate your passion surrounding the program and of course we want folks to read things with a critical mind. We also appreciate polite and respectful discourse but please also understand that answers coming from Whole30 Moderators, Administrators and Coaches is generally not going to be "false information".