That is different. The British Army do not target innocent people with bombs and are an officially recognised army, not a terrorist group.
Let's put some context to this. If I worked in Iraq and was a public figure to some Iraqi's then, yes, it would be disrespectful to take to twitter supporting the British army when some of my followers may have had family killed by them. Deegan works in England where a number of innocent people were killed by the IRA, some of whom will be Coventry fans. It is 100% unacceptable for him to support them on twitter and he should be reprimanded for it.
I suppose technically, you are right a no bombs were used, however it shows this is quite a complicated issue......
Despite the general unease in Dublin as news broke of the killings, a war-weary populace continued with life. Approximately 5,000 spectators went to
Croke Park for the Gaelic football match between Dublin and Tipperary, which began thirty minutes late, at 3:15 p.m. Meanwhile, outside the Park, unseen by the crowd, British security forces were approaching and preparing to raid the match. A convoy of troops drove in from the northwest, along Clonliffe Road, while a convoy of police and Auxiliaries approached the Park from the south or Canal end. Their orders were to surround the grounds, guard the exits, and search every man in the Park. The authorities later stated that their intention was to announce by megaphone that all males leaving the stadium would be searched and that anyone leaving by other means would be shot. But for some reason, shots were fired as soon as the police convoy reached the stadium, at 3:25 p.m.
By the time Major Mills got his men back under control, the police had fired 114 rounds of rifle ammunition, and an unknown amount of revolver ammunition as well, not counting 50 rounds fired from the machine guns in the armoured car outside the Park.
[15] Seven people had been shot to death, and five more had been fatally wounded; another two people had been trampled to death by the crowd. The dead included Jeannie Boyle, who had gone to the match with her fiancé and was due to be married five days later, and
two boys aged 10 and 11. Two football players,
Michael Hogan and Jim Egan, had been shot; Hogan was killed, but Egan survived, along with dozens of other wounded and injured.