Russia will not be seeking to get a firm NATO response in the form of troops mobilised; they will be seeking to carefully undermine confidence in article 5 with small offenses that “should” trigger it but (they hope) don’t, causing fractures in the alliance that will allow them to be more brazen. They don’t want to deal with blocs of countries, they have more leverage in 1:1 negotiations and will seek ways to force more of these on NATO members.