Now a more official statement: you can continue to do what ever you want. This is open source - it is delivered as is. You are free to use as you like and modify as you like. If you want to create additional scripts to support management of owncloud on servers without ssh access: you are very welcome to do so!
But we simply can no longer advise to run owncloud on such systems - the pain of maintenance is too high.
Why would we support an easy installation on such systems and as soon as you use it: oh sorry it is no possible to do X, Y, Z …
All the reasoning is in Bye-bye web setup ( webinstaller )
THX