Here we go again everytime Inno tries to improve game the complainers come out in force
Well Andrew the thread is a request for players feedback on the update. Maybe the developers should consider this feedback instead of blatantly ignoring it as the complaints as you describe them have been raised previously and in fact the developers didn't make the replace army update previously because of that feedback. Well I can only surmise that was the reason as they do not converse with their customers. What has changed since for them to think it is now ok I don't know.
The update does contain some good elements especially the fixing of bugs but the majority of changes made to GvG IMO have had a negative effect and not solved the issues they were aimed at resolving. In fact they seem to introduce additional problems when they have made these so called 'improvement' to GvG.
Removing the delete army button is another one of the so called problem solving changes which introduces other issues that cause harm to the game play. From what I have read players predictions of previous changes have come to pass and you only have to look at how GvG is currently played to see that is true.
Raising alarm bells to the implications of changes should be seen as a positive thing. It means players care about the game and want the best for it and are willing to spend considerable time bringing the issues to the forefront. It is just a shame that more notice is not taken.
I can already see that removing the delete army button and using a replace army one will just change the nature of sabotage but not get rid of it and as others have already stated ghost/demo guilds will still be able to cause considerable damage albeit at a slower rate.
You will see saboteurs replace defence armies with 8 rogues or other weaker line ups so they are easily defeated. There is still the ability to delete 4 sectors per reset which if timed just before and after reset totals 8 sectors being removed. Due to the GvG event log not always showing who performed an action the saboteur could even remain unknown.
This change doesn't really solve anything but does introduce a new problem that the developers have chosen to ignore although they must be fully aware of it.