'scholar':
The structure of the narrative as recorded in the Olivet Discourse shows that the timing of the Great Tribulation is associated with the ;chosen ones'
That is 'word salad'. It isn't the 'structure of the narrative' that 'shows the timing'. The direct statements in Matthew 24:15-31 indicate the 'timing'. Regarding the 'chosen ones', the passage directly states that the 'tribulation' would be 'cut short' on account of the 'chosen ones', and only after the tribulation had ended was 'Christ' meant to appear to 'gather' the 'chosen ones'. No part of the 'structure' suggests the 'presence' of Christ prior to or even during the 'tribulation'.
The JW claim that Jesus' presence began in 1914 with a yet future 'great tribulation' contradicts the Bible's quite direct order of events: 'great tribulation', and then Christ's presence. Their view is a relic of C. T. Russell's failed claims about 1799, 1874 and 1878 and J. F. Rutherford's subsequent attempts to retrofit those claims to 1914 and beyond.