If 1.5673 was the bottom of wave E within a triangle, then wave E was especially small. Remember, E waves of triangles are usually sharp and have a tendency to penetrate the lower triangle line. The deep E wave fools most market participants into the thinking that a major reversal is underway.
In other words, wave E of the triangle creates the psychology necessary for the terminal thrust. The triangle may not be perfect, but the form is there, so we must respect it. If 1.5673 was the bottom of wave E, then the EURUSD may carry to 1.6250; this is where the rally from 1.5673 would equal the widest point of the triangle (a common occurrence).