You need to get real - yes you were naive to think that Apple will be interested in iWeb feedback - feedback for an unsupported product.
Apple are not likely to produce a patch for an unsupported product and for a product that has not been updated for 6 years now - be sensible about this - it is just not going to happen.
Unfortunately, as we have all said already, with each successive OS update, iWeb is going to become less and less compatible, so rather than wishing that Apple will produce a patch to fix an unsupported product, do not update your OS to El Capitan and stay with an OS that works with iWeb.
You need to realise that there is no further need for iWeb - it was introduced at a time when Apple brought out .Mac and then MobileMe, that offered web hosting. Once this was done away with and iCloud came into being that did not offer web hosting, but just plain storage, there was no further need for iWeb, so this is why Apple ditched it.
EverWeb is the closest to iWeb that you will ever find. You can transfer your sites slowly and do it gradually and then at least you are using up to date software that is not unsupported as iWeb is.
Your only solution now is to keep using iWeb with Yosemite, as Apple are not going to bring out any patch to fix anything and with an unsupported product are under no obligation to do so.